photosyenthesis

Question 1

plant or internal factors are dependent on

Answer 1

genetic predisposition and the growth of plant

Question 2

in plants light saturation occurs at

Answer 2

10% of full sunlight

Question 3

carbon dioxide saturation point in c4 and c3 plants resp

Answer 3

360 and 450(mewlL-1)

Question 4

tpmato and bell pepper are egs for

Answer 4

c3 plants

Question 5

———–plants have higher temp optimum

Answer 5

tropical plamnts

Question 6

rubp plus o2

Answer 6

phosphoglycerate

phosphogycolate 2c

Question 7

particularly large cells around vascular biundles of c4 plants are called

Answer 7

bundlesheath cells

Question 8

characteristics of bundle sheath cells

Answer 8

large no of choloroplast
thick walls impervious to gaseous exchange
no intercellular spaces

Question 9

pep is a ——–c molecule

Answer 9

3 c

Question 10

basic pathway that results in the formation of the sugars

Answer 10

c3 cycle

Question 11

steps in c4 cycle hatch anmd slack pathway

Answer 11

fixation
decarboxylation
regeneration

Question 12

steps in calvin cycle

Answer 12

carboxylation
reduction
regeneration

Question 13

co2 acceptor in c3 cycle

Answer 13

ribulose 1 5 biphosphate

Question 14

primary co2 fixation product in c3 cycle

Answer 14

3pga

Question 14

primary co2 fixation product in c3 cycle

Answer 14

3pga

Question 15

who provided evidence for production of glucose when plants grow

Answer 15

julious von sachs

Question 16

in green plants ——is the hydrogen donor and is ——–into o2

Answer 16

hydrogen

oxidised

Question 17

photosyenthesis equation

Answer 17

6co2 +12h2o ——-) c6h1206 +6h20 +602

Question 18

light reaction is called called

Answer 18

photochemical reactions

Question 19

dark reactions are also called

Answer 19

carbon reactions

Question 20

chl a =——-
chl b=——–
xanthophill=——-
carotenoids=————

Answer 20

bright or blue green
yellow green
yellow
yellow to yellow orange

Question 21

in ——–the reaction centre chlorophil a has an absorption maxima at 700nm

Answer 21

ps1

Question 22

water splitting complex associated with ps2 is physically located at

Answer 22

inner side of the membrane of thylakoid

Question 23

the process by which atp is synthesised by cells are called

Answer 23

phosphorilation

Question 24

possible location for cyclic photophosphosphorylation to occ\ur(ps1)

Answer 24

stroma lammelle

stroma lammelle lack ps2 and nadp reductase enzyme

Question 25

atp synthase enzyme consists of two parts
one ) ————embedded in the thylakoid membrane and forms and forms a transmembrane channel that carries out facilitated diffusion of protons across membrane

Answer 25

cFo

Question 26

————–molecule removes a proton from the stroma while transporting the electron

Answer 26

plastoquinone (qb)*hydrogen carrier

Question 27

electron carrier in the inner side oif membrane

Answer 27

plastocyanine

Question 28

requirements for chemiosmotic hypothesis

Answer 28

membrane
poroton pump
proton gradient
atp synthase

Question 29

products of light reaction

Answer 29

atp
nadph
o2

Question 30

what led to the discovery that the first co2 fixation product was a 3 c compound

Answer 30

use of radioactive c14 by melvin calvin in algal photosynthesis studies